diff --git a/.github/workflows/testpypi.yml b/.github/workflows/testpypi.yml
deleted file mode 100644
index 17f7b34..0000000
--- a/.github/workflows/testpypi.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-### CI actions are pinned to immutable commit hashes, not mutable tags, to reduce supply-chain risk and help prevent LLM-based CI attacks. See https://github.com/lirantal/pypi-security-best-practices#13-secure-your-cicd-release-pipeline.
-name: publish to testpypi
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  build:
-    name: build package
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
-        with:
-          fetch-depth: 0
-          fetch-tags: true
-
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
-        with:
-          enable-cache: true
-
-      - run: uv build
-
-      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: package-dist
-          path: dist/*
-
-  publish:
-    name: publish package to TestPyPI
-    needs: build
-    runs-on: ubuntu-latest
-    environment: testpypi
-    permissions:
-      id-token: write
-    steps:
-      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          name: package-dist
-          path: dist
-
-      # Requires TestPyPI Trusted Publishing to be configured for this GitHub
-      # repository/workflow/environment on test.pypi.org. The `id-token: write`
-      # permission above lets this action request an OIDC token, in place of a
-      # PYPI_TOKEN repository secret.
-      - uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # 1.14.0
-        with:
-          repository-url: https://test.pypi.org/legacy/